Icom MR-1000RII - System Cable Wiring

■ Connecting the units
NMEA1:
Bearing data input
NMEA2:
NMEA 0183 data input
Speed sensor input
+
Ground
Power supply
10.2 to 42 V DC
Red:
Black: _
PWR
GND
NEVER connect anything
other than the supplied
scanner unit.
Supplied scanner unit
Display unit
NMEA1 connection (Rear panel view) NMEA2 connection (Rear panel view)
q N TXT
(NMEA 2 output)
w RXD
i GND
u N.C
y AUX input (–); CLOCK
or N+1(–) data input
t AUX input (+); CLOCK
or N+1(+); data input
r NMEA 1 input (–)
or AUX input (–); DATA
e NMEA 1 input (+)
or AUX input(+); DATA
■ Power source requirement
DDC power source
DC input
Ground
The display unit is designed for connection to any
power source if the voltage is 10.2–42 V DC, so that a
12, 24, or 32 V DC battery can be used without a
DC-DC converter, or any internal modifications.
• DC power cable connection
CAUTION: Incorrect cable connection will dam-
age the display unit.
Connect the supplied DC power cable as shown in the
diagram.
■ Ground connection
To prevent electrical shocks and other problems, ground the display unit through the [GND] terminal. For best re-
sults, connect a heavy gauge wire or strap to the nearest grounding point on the boat. The distance between the
[GND] terminal and the ground point should be as short as possible.
8
INSTALLATION AND CONNECTIONS
23
q NMEA 2
output (+)
w NMEA 2
output (–)
e NMEA 2
input (+)
u GND (Speed sensor)
y Speed sensor
input
t Regulated 12 V output.
(20 mA Max.)
r NMEA 2 input (–)
(Rear panel view)